Just to clear something up in the way you worded it. You installed it on the line coming out of the rear of the master cylinder, correct? The front line of the master cylinder feeds the rear brakes.

So you mash the brake pedal, press the linelock button, release the pedal, and the car still moves forward?


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax